Muscle Coordination while Pulling up During Cycling

 

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Abstract

The aim of this study was to determine the influence of the pull up action on the pedalling mechanics and muscle coordination during cycling. 9 elite cyclists pedalled at 320 watts with their preferred technique and while pulling up. The pull up action increased significantly the pedalling effectiveness during the upstroke and around the bottom dead centre. This was associated with a significant enhancement of the biceps femoris activity (48%), an earlier onset of activation of the tibialis anterior, i. e., 211±83° vs. 259±22° (crank angle) and a delayed offset of activation of the gastrocnemius lateralis, i. e., 244±19° vs. 216±39°. Consequently, co-activities between tibialis anterior and gastrocnemius lateralis muscles over 55±65° (crank angle range), as well as between the biceps femoris and the tibialis anterior over 48±57° were generated. These higher co-activities were necessary to stiffen the ankle joint and to power the pedal during the upstroke. Thus changes in muscle coordination improved the pedalling effectiveness during the upstroke phase but would probably lead to impairment of the oxygen consumption. Therefore, training the pull up action could be of interest to optimize this muscle coordination associated with better pedalling effectiveness by additionally relieving hip or knee extensors during the downstroke.

References

• 1 Böhm H, Siebert S, Walsh M. Effects of short-term training using SmartCranks on cycle work distribution and power output during cycling.  Eur J Appl Physiol. 2008;  103 225-232
  CrossrefPubMedGoogle Scholar
• 2 Cannon DT, Kolkhorst FW, Cipriani DJ. Effect of pedaling technique on muscle activity and cycling efficiency.  Eur J Appl Physiol. 2007;  99 659-664
  CrossrefPubMedGoogle Scholar
• 3 Chapman AR, Vicenzino B, Blanch P, Hodges PW. Patterns of leg muscle recruitment vary between novice and highly trained cyclists.  J Electromyogr Kinesiol. 2008;  18 359-371
  CrossrefPubMedGoogle Scholar
• 4 Gregor RJ, Cavanagh PR, Lafortune M. Knee flexor moments during propulsion in cycling - a creative solution to Lombard's Paradox.  J Biomech. 1985;  18 307-316
  CrossrefPubMedGoogle Scholar
• 5 Harriss DJ, Atkinson G. International Journal of Sports Medicine - Ethical Standards in Sport and Exercise Science Research.  Int J Sports Med. 2009;  30 701-702
  Google Scholar
• 6 Hasson CJ, Caldwell GE, van Emmerik RE. Changes in muscle and joint coordination in learning to direct forces.  Hum Mov Sci. 2008;  27 590-609
  CrossrefPubMedGoogle Scholar
• 7 Korff T, Romer LM, Mayhew I, Martin JC. Effect of pedaling technique on mechanical effectiveness and efficiency in cyclists.  Med Sci Sports Exerc. 2007;  39 991-995
  CrossrefPubMedGoogle Scholar
• 8 Li L, Caldwell GE. Muscle coordination in cycling: effect of surface incline and posture.  J Appl Physiol. 1998;  85 927-934
  PubMedGoogle Scholar
• 9 Luttrell MD, Potteiger JA. Effects of short-term training using Powercranks on cardiovascular fitness and cycling efficiency.  J Strength Cond Res. 2003;  17 785-791
  CrossrefPubMedGoogle Scholar
• 10 Mornieux G, Stapelfeldt B, Gollhofer A, Belli A. Effects of pedals and pull-up action in cycling.  Int J Sports Med. 2008;  29 817-822
  Article in Thieme ConnectPubMedGoogle Scholar
• 11 Neptune RR, Kautz SA, Hull ML. The effect of pedaling rate on coordination in cycling.  J Biomech. 1997;  30 1051-1058
  CrossrefPubMedGoogle Scholar
• 12 Raasch CC, Zajac FE. Locomotor strategy for pedaling: muscle groups and biomechanical functions.  J Neurophysiol. 1999;  82 515-525
  PubMedGoogle Scholar
• 13 Rouffet DM, Mornieux G, Zameziati K, Belli A, Hautier CA. Timing of muscle activation of the lower limbs can be modulated to maintain a constant pedaling cadence.  J Electromyogr Kinesiol. 2009;  19 1100-1107
  CrossrefPubMedGoogle Scholar
• 14 Sanderson DJ, Cavanagh PR. Use of augmented feedback for the modification of the pedaling mechanics of cyclists.  Can J Sport Sci. 1990;  15 38-42
  PubMedGoogle Scholar
• 15 Takaishi T, Yamamoto T, Ono T, Ito T, Moritani T. Neuromuscular, metabolic, and kinetic adaptations for skilled pedalling performance in cyclists.  Med Sci Sports Exerc. 1998;  30 442-449
  CrossrefPubMedGoogle Scholar

Correspondence

Dr. Guillaume Mornieux

Universität Freiburg

Institut für Sport und

Sportwissenschaft

175 Schwarzwaldstraße

79117 Freiburg

Germany

Phone: +49/761/203 4521

Fax: +49/761/203 4534

Email: guillaume.mornieux@sport.uni-freiburg.de